Every ZIP code in the United States, with weather, radar, trivia and the numbers behind it. Five digits since 1963!

ZIP stands for Zone Improvement Plan. The codes went live on July 1, 1963.The lowest ZIP code is 00501 — the IRS in Holtsville, New York.The highest ZIP code is 99950, in Ketchikan, Alaska.Type 07734 into a calculator and turn it upside down: hELLO. It is Keansburg, New Jersey.12345 belongs to one company: General Electric in Schenectady, New York.The first digit is a region: 0 is New England and New Jersey, 9 is the West Coast, Alaska and Hawaii.Mr. ZIP, the cartoon mailman, was the mascot that sold the idea to America.ZIP+4 arrived in 1983 and can narrow a ZIP down to one side of one block.A ZIP code is a mail route, not a place: plenty of them cross county and even state lines.Play ZIP Hunt: guess the secret ZIP code of the day in six tries.
zipcodes.pro — ZIP/99523

99523

ZIP 99523 is in Anchorage, Alaska, in Anchorage Municipality; area code 907; Alaska time. Anchorage has 25 ZIP codes in all.

Type
No street area
Time zone
America/Anchorage
County
Anchorage
Metro area
Anchorage, AK
Coordinates
61.2181, -149.9003

The Census map gives this ZIP code no delivery area of its own, which usually means it serves post office boxes, a single organization or a post office rather than streets of homes.

This ZIP code has no Census tabulation area of its own. Its point falls inside ZCTA 99501, whose figures describe that area — not this ZIP code.

☼ Live from 99523 — Anchorage, AK

Weather right now

Asking the National Weather Service…

NEXRAD radar
Finding the nearest radar…
Local time: —

Where 99523 is

This ZIP code has no Census tabulation area, so there is no boundary to draw — the marker is its published point location.

★ Weird and wonderful facts about 99523
  • 🔢 Type 99523 into a pocket calculator and turn it upside down: EZSGG — not quite a word, sorry.
  • ➕ 99523 is a prime number. It cannot be divided by anything except 1 and itself. Its digits add up to 28, a total 1,520 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 11000010011000011
  • 🏠 Its numerical neighbours: 99522 (Anchorage, AK, 0 mi away) and 99524 (Anchorage, AK, 0 mi away).
  • 🔄 Backwards, 99523 becomes 32599, which is not a ZIP code at all.
  • 👥 20 other ZIP codes are made of exactly the same digits (23959, 29395, 29593, 29935, 32959, 39529, …). The farthest-flung twin is 32959 in Sharpes, FL, 3,826 miles away.
  • 🧭 Farther north than 99% of all ZIP codes, and farther west than 99%.
  • 🎯2,597 miles northwest of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 99523 and you would come out at 61.22°S, 30.10°E — 1,741 miles from Port-aux-Français, French Southern Territories, the nearest big city to that spot.
  • ☀Longest day of the year: 19h 22m of daylight. Shortest: 5h 27m.
🌙 The sky over 99523 today
  • Working out the sun…
🌋 Shake report
  • Checking the USGS…

Source: USGS.

Business and tax activity

Business establishments13This ZIP13
Employees54This ZIP54
Annual payroll$2,230,000This ZIP$2,230,000

Land area

ZIP codes near 99523

ZIPCityDistance
99509 Anchorage, AK 0.0 mi
99514 Anchorage, AK 0.0 mi
99520 Anchorage, AK 0.0 mi
99521 Anchorage, AK 0.0 mi
99522 Anchorage, AK 0.0 mi
99524 Anchorage, AK 0.0 mi
99513 Anchorage, AK 0.5 mi
99501 Anchorage, AK 1.4 mi
99599 Anchorage, AK 2.2 mi
99517 Anchorage, AK 2.3 mi

Find every ZIP code within 10 miles of 99523 →

Questions about this ZIP code

Where is ZIP code 99523?

99523 is in Anchorage, Alaska, in Anchorage Municipality, part of the Anchorage, AK metropolitan area. Its published point location is 61.2181, -149.9003.

What county is 99523 in?

99523 lies in Anchorage Municipality.

What area code is 99523?

Anchorage uses area code 907, from NANPA's telephone records.

What time zone is 99523 in?

99523 uses America/Anchorage.

What ZIP codes are near 99523?

The closest are 99509 (0 mi), 99514 (0 mi), 99520 (0 mi), 99521 (0 mi) and 99522 (0 mi).

Is 99523 a PO Box ZIP code?

Possibly. The Census map gives this ZIP code no delivery area of its own, which usually means it serves post office boxes, a single organization or a post office rather than streets of homes.

Download or cite

Cite this page

zipcodes.pro. “99523 ZIP Code — Anchorage, Alaska (Anchorage Municipality).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/99523

Machine-readable version of these facts:

curl https://zipcodes.pro/zip/99523.json

Underlying data is public domain or openly licensed — sources, vintages and licences.